CPM Homework Help : MC2 Problem 6-17

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6-17.

Simplify the following expressions.

$–5 + 2(8-12)$
Hint (a):
Use the order of operations.
More Help (a):
First simplify the terms in parentheses, then simplify any exponents, terms that are multiplied or divided, and finally any terms that are added or subtracted.
Answer (a):
$−13$

$(–5 + 2)(8-12)$
Hint (b):
See part (a).

$–5 + 2 · 8-12$
Hint (c):
See part (a).

$\frac { 1 } { 2 } ( - 6 ) ( 4 + 10 )$
Hint (d):
See part (a).
Answer (d):
$−42$

$- \frac { 2 } { 3 } \cdot 6 + 15 \div ( - 3 )$
Hint (e):
See part (a).
Answer (e):
$−9$

$(7-2)^2 – 5 ÷ 5$
Hint (f):
See part (a).

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